“Shades of Tranquillity” was Sounak’s first exclusive solo Classical Music album. Published by Bihaan Music, the album features evening and night time Ragas – Shuddha Kalyan, Bihag and Desh. Accompaniment for Tabla and Harmonium has been provided by two most well known names in Indian classical music circles - Soumen Sarkar (Tabla) and Rupashree Bhattacharya (Harmonium).